/* test_ccm_mode.c - TinyCrypt AES-CCM tests (RFC 3610 tests) */

/*
 *  Copyright (C) 2015 by Intel Corporation, All Rights Reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *    - Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *
 *    - Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 *    - Neither the name of Intel Corporation nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 *
 *  test_ccm_mode.c -- Implementation of some AES-CCM tests (RFC 3610 tests).
 *
 */
#include <tinycrypt/ccm_mode.h>
#include <tinycrypt/constants.h>
#include <test_utils.h>

#include <string.h>
#include <stdlib.h>

static void do_test (
    const uint8_t *key,
    uint8_t *nonce,
    size_t nlen,
    const uint8_t *hdr,
    size_t hlen,
    const uint8_t *data,
    size_t dlen,
    const uint8_t *expected,
    size_t elen,
    const int mlen) {

  uint8_t ciphertext[50];
  uint8_t decrypted[25];
  struct tc_ccm_mode_struct c;
  struct tc_aes_key_sched_struct sched;

  tc_aes128_set_encrypt_key (&sched, key);
  if (tc_ccm_config (&c, &sched, nonce, nlen, mlen) == 0) {
    fprintf (stderr, "ccm_config failed\n");
    exit (-1);
  }

  if (tc_ccm_generation_encryption (ciphertext, hdr, hlen, data, dlen, &c) == 0) {
    fprintf (stderr, "ccm_encrypt failed\n");
    exit (-1);
  }

  if (memcmp (expected, ciphertext, elen) != 0) {
    fprintf (stderr, "ccm_encrypt produced wrong ciphertext\n");
    show_str ("\t\tExpected", expected, elen);
    show_str ("\t\tComputed", ciphertext, elen);
    exit (-1);
  }

  if (tc_ccm_decryption_verification (decrypted, hdr, hlen, ciphertext, dlen+mlen, &c) == 0) {
    fprintf (stderr, "ccm_decrypt failed\n");
    show_str ("\t\tExpected", data, dlen);
    show_str ("\t\tComputed", decrypted, sizeof (decrypted));
    exit (-1);
  }
  printf("Success!\n");
}

void test_vector_1 (void) {

  printf ("\tPerforming CCM test #1 (RFC 3610 test vector #1)...");
  /* RFC 3610 test vector #1 */
  const uint8_t key[16] = {
      0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb,
      0xcc, 0xcd, 0xce, 0xcf
  };
  uint8_t nonce[13] = {
      0x00, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4,
      0xa5
  };

  const uint8_t hdr[8] = {
      0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
  };
  const uint8_t data[23] = {
      0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
      0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e
  };
  const uint8_t expected[31] = {
      0x58, 0x8c, 0x97, 0x9a, 0x61, 0xc6, 0x63, 0xd2, 0xf0, 0x66, 0xd0, 0xc2,
      0xc0, 0xf9, 0x89, 0x80, 0x6d, 0x5f, 0x6b, 0x61, 0xda, 0xc3, 0x84, 0x17,
      0xe8, 0xd1, 0x2c, 0xfd, 0xf9, 0x26, 0xe0
  };

  uint16_t mlen = 8;

  do_test (key, nonce, sizeof(nonce), hdr, sizeof (hdr), data, sizeof (data), expected,
      sizeof (expected), mlen);
}

void test_vector_2 (void) {
  printf ("\tPerforming CCM test #2 (RFC 3610 test vector #2)...");
  /* RFC 3610 test vector #2 */
  const uint8_t key[16] = {
      0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb,
      0xcc, 0xcd, 0xce, 0xcf
  };
  uint8_t nonce[13] = {
      0x00, 0x00, 0x00, 0x04, 0x03, 0x02, 0x01, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4,
      0xa5
  };
  const uint8_t hdr[8] = {
      0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
  };
  const uint8_t data[24] = {
      0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
      0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f
  };
  const uint8_t expected[32] = {
      0x72, 0xc9, 0x1a, 0x36, 0xe1, 0x35, 0xf8, 0xcf, 0x29, 0x1c, 0xa8, 0x94,
      0x08, 0x5c, 0x87, 0xe3, 0xcc, 0x15, 0xc4, 0x39, 0xc9, 0xe4, 0x3a, 0x3b,
      0xa0, 0x91, 0xd5, 0x6e, 0x10, 0x40, 0x09, 0x16
  };

  uint16_t mlen = 8;

  do_test (key, nonce, sizeof(nonce), hdr, sizeof (hdr), data, sizeof (data), expected,
      sizeof (expected), mlen);
}

void test_vector_3 (void) {
  printf ("\tPerforming CCM test #3 (RFC 3610 test vector #3)...");
  /* RFC 3610 test vector #3  */
  const uint8_t key[16] = {
      0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb,
      0xcc, 0xcd, 0xce, 0xcf
  };
  uint8_t nonce[13] = {
      0x00, 0x00, 0x00, 0x05, 0x04, 0x03, 0x02, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4,
      0xa5
  };
  const uint8_t hdr[8] = {
      0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
  };
  const uint8_t data[25] = {
      0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
      0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
      0x20
  };
  const uint8_t expected[33] = {
      0x51, 0xb1, 0xe5, 0xf4, 0x4a, 0x19, 0x7d, 0x1d, 0xa4, 0x6b, 0x0f, 0x8e,
      0x2d, 0x28, 0x2a, 0xe8, 0x71, 0xe8, 0x38, 0xbb, 0x64, 0xda, 0x85, 0x96,
      0x57, 0x4a, 0xda, 0xa7, 0x6f, 0xbd, 0x9f, 0xb0, 0xc5
  };

  uint16_t mlen = 8;

  do_test (key, nonce, sizeof(nonce), hdr, sizeof (hdr), data, sizeof (data), expected,
      sizeof (expected), mlen);
}

void test_vector_4 (void) {
  printf ("\tPerforming CCM test #4 (RFC 3610 test vector #7)...");
  /* RFC 3610 test vector #7  */
  const uint8_t key[16] = {
      0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb,
      0xcc, 0xcd, 0xce, 0xcf
  };
  uint8_t nonce[13] = {
      0x00, 0x00, 0x00, 0x09, 0x08, 0x07, 0x06, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4,
      0xa5
  };
  const uint8_t hdr[8] = {
      0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
  };
  const uint8_t data[23] = {
      0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
      0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e
  };
  const uint8_t expected[33] = {
      0x01, 0x35, 0xD1, 0xB2,  0xC9, 0x5F, 0x41, 0xD5,
      0xD1, 0xD4, 0xFE, 0xC1,  0x85, 0xD1, 0x66, 0xB8,
      0x09, 0x4E, 0x99, 0x9D,  0xFE, 0xD9, 0x6C, 0x04,
      0x8C, 0x56, 0x60, 0x2C,  0x97, 0xAC, 0xBB, 0x74,  0x90
  };

  uint16_t mlen = 10;

  do_test (key, nonce, sizeof(nonce), hdr, sizeof (hdr), data, sizeof (data), expected,
      sizeof (expected), mlen);
}

void test_vector_5 (void) {
  printf ("\tPerforming CCM test #5 (RFC 3610 test vector #8)...");
  /* RFC 3610 test vector #8  */
  const uint8_t key[16] = {
      0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
      0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF
  };
  uint8_t nonce[13] = {
      0x00, 0x00, 0x00, 0x0A, 0x09, 0x08, 0x07, 0xA0,
      0xA1, 0xA2, 0xA3, 0xA4, 0xA5
  };
  const uint8_t hdr[8] = {
      0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
  };
  const uint8_t data[24] = {
      0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
      0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f
  };
  const uint8_t expected[34] = {
      0x7B, 0x75, 0x39, 0x9A, 0xC0, 0x83, 0x1D, 0xD2,
      0xF0, 0xBB, 0xD7, 0x58, 0x79, 0xA2, 0xFD, 0x8F,
      0x6C, 0xAE, 0x6B, 0x6C, 0xD9, 0xB7, 0xDB, 0x24,
      0xC1, 0x7B, 0x44, 0x33, 0xF4, 0x34, 0x96, 0x3F, 0x34, 0xB4
  };

  uint16_t mlen = 10;

  do_test (key, nonce, sizeof(nonce), hdr, sizeof (hdr), data, sizeof (data), expected,
      sizeof (expected), mlen);
}


void test_vector_6 (void) {
  printf ("\tPerforming CCM test #6 (RFC 3610 test vector #9)...");
  /* RFC 3610 test vector #9  */
  const uint8_t key[16] = {
      0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
      0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF
  };
  uint8_t nonce[13] = {
      0x00, 0x00, 0x00, 0x0B, 0x0A, 0x09, 0x08, 0xA0,
      0xA1, 0xA2, 0xA3, 0xA4, 0xA5
  };
  const uint8_t hdr[8] = {
      0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
  };
  const uint8_t data[25] = {
      0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
      0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20
  };
  const uint8_t expected[35] = {
      0x82, 0x53, 0x1a, 0x60, 0xCC, 0x24, 0x94, 0x5a,
      0x4b, 0x82, 0x79, 0x18, 0x1a, 0xb5, 0xc8, 0x4d,
      0xf2, 0x1c, 0xe7, 0xf9, 0xb7, 0x3f, 0x42, 0xe1,
      0x97, 0xea, 0x9c, 0x07, 0xe5, 0x6b, 0x5e, 0xb1, 0x7e, 0x5f, 0x4e
  };

  uint16_t mlen = 10;

  do_test (key, nonce, sizeof(nonce), hdr, sizeof (hdr), data, sizeof (data), expected,
      sizeof (expected), mlen);
}

void test_vector_7 (void) {
  printf ("\tPerforming CCM test #7 (no associated data)...");
  /* Test based on RFC 3610 test vector #9 but with no associated data */
  const uint8_t key[16] = {
        0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
        0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF
    };
    uint8_t nonce[13] = {
        0x00, 0x00, 0x00, 0x0B, 0x0A, 0x09, 0x08, 0xA0,
        0xA1, 0xA2, 0xA3, 0xA4, 0xA5
    };
    uint8_t * hdr = NULL;

    uint8_t data[25] = {
        0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
        0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20
    };

  struct tc_ccm_mode_struct c;
  struct tc_aes_key_sched_struct sched;
  uint8_t decrypted[25];
  uint8_t ciphertext[50];

  uint16_t mlen = 10;

  tc_aes128_set_encrypt_key (&sched, key);
  if (tc_ccm_config (&c, &sched, nonce, sizeof(nonce), mlen) == 0) {
    fprintf (stderr, "ccm_config failed\n");
    exit (-1);
  }

  if (tc_ccm_generation_encryption (ciphertext, hdr, 0, data, sizeof(data), &c) == 0) {
    fprintf (stderr, "ccm_encrypt failed\n");
    exit (-1);
  }

  if (tc_ccm_decryption_verification (decrypted, hdr, 0, ciphertext, sizeof(data)+mlen, &c) == 0) {
    fprintf (stderr, "ccm_decrypt failed\n");
    show_str ("\t\tExpected", data, sizeof(data));
    show_str ("\t\tComputed", decrypted, sizeof (decrypted));
    exit (-1);
  }
  printf("Success!\n");

}

void test_vector_8 (void) {
  printf ("\tPerforming CCM test #8 (no payload data)...");
  /* Test based on RFC 3610 test vector #9 but with no payload data */
  const uint8_t key[16] = {
        0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
        0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF
    };
    uint8_t nonce[13] = {
        0x00, 0x00, 0x00, 0x0B, 0x0A, 0x09, 0x08, 0xA0,
        0xA1, 0xA2, 0xA3, 0xA4, 0xA5
    };
    const uint8_t hdr[8] = {
        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
    };

    uint8_t *data = NULL;

  struct tc_ccm_mode_struct c;
  struct tc_aes_key_sched_struct sched;
  uint8_t decrypted[25];
  uint8_t ciphertext[50];

  uint16_t mlen = 10;

  tc_aes128_set_encrypt_key (&sched, key);
  if (tc_ccm_config (&c, &sched, nonce, sizeof(nonce), mlen) == 0) {
    fprintf (stderr, "ccm_config failed\n");
    exit (-1);
  }

  if (tc_ccm_generation_encryption (ciphertext, hdr, sizeof(hdr), data, 0, &c) == 0) {
    fprintf (stderr, "ccm_encrypt failed\n");
    exit (-1);
  }

  if (tc_ccm_decryption_verification (decrypted, hdr, sizeof(hdr), ciphertext, mlen, &c) == 0) {
    fprintf (stderr, "ccm_decrypt failed\n");
    show_str ("\t\tExpected", data, sizeof(data));
    show_str ("\t\tComputed", decrypted, sizeof (decrypted));
    exit (-1);
  }
  printf("Success!\n");

}

int main (void) {
  setbuf(stdout, NULL);
  printf ("Performing CCM tests...\n");
  test_vector_1 ();
  test_vector_2 ();
  test_vector_3 ();
  test_vector_4 ();
  test_vector_5 ();
  test_vector_6 ();
  test_vector_7 ();
  test_vector_8 ();
  printf ("All CCM tests succeeded!\n\n");
  return 0;
}
